EE 341, Spring 2011 Problem Set 7 Due by 9:30am, Tuesday, May 17 Problem 1 – Inverse DTFT Oppenheim, Willsky and Nawab, 5.22 (f) Problem 2 – DTFT Properties Which, if any, of the four signals in Figure P5.24 (page 405) satisfy the following condition? There exists an integer 0nsuch that 0jnjeXeis real-valued. Problem 3 – DTFT and LTI Systems Oppenheim, Willsky and Nawab, 5.31. Problem 4 – Subsampling Oppenheim, Willsky and Nawab, 5.43. Problem 5 – Convolution Define the transform ()nnX zT xnxn z, which converts x nto a polynomial in the variable z. Now suppose we have two signals: 0122[ 1]]xn
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